30 Questions
What is the primary mode of transmission for Giardia lamblia?
Ingestion of contaminated food and water
Which flagellate is associated with the condition known as 'strawberry cervix'?
Trichomonas vaginalis
What is the diagnostic stage of Trichomonas vaginalis?
Trophozoite only
Which non-pathogenic flagellate is found in the oral cavity?
Trichomonas tenax
What is the drug of choice for invasive amoebiasis caused by Entamoeba histolytica?
Metronidazole
What is the characteristic feature of the cyst of Chilomastix mesnili?
Knob-like protuberance
What is a characteristic feature of the nucleus of Iodamoeba?
A large, chromatin-rich karyosome surrounded by achromatic globules
Which Entamoeba species does not inhabit the intestines and lacks a cyst stage?
Entamoeba gingivalis
What is a characteristic feature of the trophozoite of Entamoeba coli?
More vacuolated or granular endoplasm with bacteria and debris, no RBC
What is a characteristic feature of the cyst of Entamoeba coli?
Larger size and 8 nuclei
Which Entamoeba species is osmotolerant and can grow at room temperature?
Entamoeba moshkovskii
What is a characteristic feature of the trophozoite of Entamoeba polecki?
Broad, blunt pseudopodia used for feeding
What is the usual time frame for the onset of the late phase/meningoencephalitic stage in Gambian trypanosomiasis?
3 to 10 months after initial infection
What is the characteristic feature of Kerandel's sign in trypanosomiasis?
Delayed bilateral pain out of proportion to the extent of tissue injury
What is the treatment for early stage/Hemolymphatic stage T.brucei gambiense?
Suramin IM
What is the vector responsible for transmitting Leishmaniasis in the Old world?
Phlebotomus sandfly
What is the characteristic skin lesion of Cutaneous Leishmaniasis?
An erythematous papule or nodule
What is the incubation period of Cutaneous Leishmaniasis?
Two weeks to several months
What is the primary mode of transmission of Hymenolepis nana?
Ingestion of cysticercoid infected arthropods
Which of the following is NOT a definitive host of Hymenolepis diminuta?
Cats
What is the infective stage of Hymenolepis nana?
Cysticercus
Which of the following diseases is caused by Dipylidium caninum?
Dipylidiasis
What is the most commonly infected age group with Dipylidium caninum?
Children
What is the treatment of choice for Hymenolepiasis?
Praziquantel
What is the common name of the disease caused by Schistosoma spp.?
Oriental blood fluke disease
What is the infective stage of Schistosoma spp.?
Cercariae
What is the definitive host of Schistosoma spp.?
Humans
Where are the eggs of S. japonicum located?
Lateral spine
What is the intermediate host of Paragonimus westermani?
Snail and Crab
What is the mode of transmission of Paragonimus westermani?
Ingestion of encysted metacercariae
Test your knowledge of Giardia lamblia and Trichomonas vaginalis, two types of flagellates that cause intestinal and urogenital diseases. Learn about their habitats, modes of infection, symptoms, and treatments. Identify the infective and diagnostic stages of these parasites.
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